Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package pypdf (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-PYPDF-20364638
- published1 Oct 2026
- disclosed30 Sept 2026
Introduced: 30 Sep 2026
NewCVE-2026-102998 (opens in a new tab)Amendment
The Debian security team deemed this advisory irrelevant for Debian:12.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pypdf package and not the pypdf package as distributed by Debian.
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF with form field values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant selection-data work inside a loop when an application updates fields with flattening enabled, resulting in excessive runtimes and application unavailability. This issue is fixed in version 6.19.0.
References
- https://security-tracker.debian.org/tracker/CVE-2026-102998
- https://github.com/py-pdf/pypdf/commit/959467a9b95be83e2dc5ae873ece5f371263ede7
- https://github.com/py-pdf/pypdf/pull/4087
- https://github.com/py-pdf/pypdf/releases/tag/6.19.0
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-php9-fj8v-98fj